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Aren't Python strings immutable? Then why does a + “ ” + b work?
My understanding was that Python strings are immutable.
22 Answers
22
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Find which version of package is installed with pip
...
and with --outdated as an extra argument, you will get the Current and Latest versions of the packages you are using :
$ pip list --outdated
distribute (Current: 0.6.34 Latest: 0.7.3)
django-bootstrap3 (Current: 1.1.0 Latest: 4.3.0)
Django (Current: ...
Difference between FetchType LAZY and EAGER in Java Persistence API?
...f students for a given university:
public class University {
private String id;
private String name;
private String address;
private List<Student> students;
// setters and getters
}
Now when you load a University from the database, JPA loads its id, name, and address field...
Random string generation with upper case letters and digits
I want to generate a string of size N.
31 Answers
31
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How do I parse JSON in Android? [duplicate]
...ed for GSON or anything like that.
Get your JSON:
Assume you have a json string
String result = "{\"someKey\":\"someValue\"}";
Create a JSONObject:
JSONObject jObject = new JSONObject(result);
If your json string is an array, e.g.:
String result = "[{\"someKey\":\"someValue\"}]"
then you ...
Fixed point vs Floating point number
...ge numbers in the same way, but there is a small penalty in having to have extra storage for where the decimal place goes.
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Get host domain from URL?
how to get host domain from a string URL?
9 Answers
9
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Remove ALL white spaces from text
...e(/ /g,'')
The g character means to repeat the search through the entire string. Read about this, and other RegEx modifiers available in JavaScript here.
If you want to match all whitespace, and not just the literal space character, use \s instead:
.replace(/\s/g,'')
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How to annotate MYSQL autoincrement field with JPA annotations
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Please make sure that id datatype is Long instead of String, if that
will be string then @GeneratedValue annotation will not work and the
sql generating for
@Id @GeneratedValue(strategy=GenerationType.IDENTITY)
private String id;
create table VMS_AUDIT_RECORDS (id **varc...
How do RVM and rbenv actually work?
...link to rbenv-gemset (the link will still get you there. It's just another extra step from a redirect).
– Jeffrey 'jf' Lim
Apr 15 '15 at 20:47
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